Where does “trasnamhéadar” come from?

trasnamhéadar (Irish) comes from Irish trasna, from Middle Irish tarsna, from Old Irish tarsno, from Proto-Celtic taras, from Proto-Indo-European terh₂- — to cross over, pass through, overcome.

trasnamhéadar (Irish): interferometer

Definitions

  1. interferometer

Ancestry of “trasnamhéadar”, step by step

StepLanguageWordMeaning
1Irishtrasnaacross, athwart, cross; cross-, transverse;...
2Middle Irishtarsnacrosspiece; across
3Old Irishtarsnocrosspiece
4Proto-Celtictarasacross
5Proto-Indo-Europeanterh₂-to cross over, pass through, overcome
Every word from Proto-Indo-European terh₂- →Every word from Proto-Celtic taras →Every word from Old Irish tarsno →